US PATENT SUBCLASS 346 / 36
.~ Valve movement concurrent

Current as of: June, 1999
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346 /   HD   RECORDERS

33 R  DF  COMBINED WITH EXTERNAL RECORDER OPERATING MEANS {22}
36.~ Valve movement concurrent

DEFINITION

Classification: 346/36

(under subclass 33) Recorders of the type wherein the record is one of valve operation and is produced by or upon movement of the valve.

SEE OR SEARCH CLASS

137, Fluid Handling,

553+, particularly subclass 556 for valves and other fluid handling apparatus combined with a recorder.

251, Valves and Valve Actuation, appropriate subclasses for valves not otherwise provided for.